How do I stay safe when calling tech support scams?

Scams
1

I’m wanting to mess with some scammers but I don’t know how to stay safe

2

Use fire etc or a phone app that lets you change the number and if you really want to be safe, get a vpn

3

@NukeZoned#20818 Thank you so much!

4

@NukeZoned#20818 Thank you!